In Back to the Future III, Doc Brown gives a bit of his family history. He says that his family immigrated from Germany in 1908 and changed their name from Von Braun to Brown during WWI. Vaguely alluding that he’s related to Werner Von Braun, an ex nazi scientist, creator for the US rocket program.
"¡Oh profundidad de las riquezas de la sabiduría (sophia) y de la ciencia (gnwsiV, gnosis) de Dios! ¡Cuán incomprensibles son sus juicios, e inescrutables sus caminos!" (Romanos, 11: 33).